Playground structure



FIG. 1 is a perspective view showing the front and left sides of a playground structure showing our new design;

FIG. 2 is an elevation view of the right side of the structure of FIG. 1;

FIG. 3 is a rear elevation view of the structure of FIG. 1;

FIG. 4 is a top plan view of the structure of FIG. 1. 

The ornamental design for a playground structure, as shown. 